hey..umm this game need pay to play right? so i need pay $8.99USD right...then i just want to comfirmed this ..i just need to pay once or per month? or i need to pay every single update
It should be a one time purchase unless the dev decides to hike up the price for whatever reason. Once you own it, it'll be linked to your account.
It's a one-time purchase, updates are free.
that's good to know thnks ..